<template>
  <view class="cart-container" v-if="carItems.length">
    <my-address />
    <!-- 购物车商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧的图标 -->
      <uni-icons type="shop" size="18"></uni-icons>

      <!-- 描述文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 商品列表区域 -->
    <uni-swipe-action>
      <block v-for="item in carItems" :key="item.goods_id">
        <uni-swipe-action-item
          :right-options="swipeOptions"
          @click="swipeActionClickHandler(item, $event)"
        >
          <view class="goods-item">
            <!-- 商品左侧图片区域 -->
            <view class="goods-item-left">
              <radio
                @click="changeGoodsState(item)"
                :checked="item.goods_state"
                color="#C00000"
              ></radio>
              <image
                :src="item.goods_small_logo || defaultImage"
                class="goods-pic"
              ></image>
            </view>
            <!-- 商品右侧信息区域 -->
            <view class="goods-item-right">
              <!-- 商品标题 -->
              <view class="goods-name">{{ item.goods_name }}</view>
              <view class="goods-info-box">
                <!-- 商品价格 -->
                <view class="goods-price">{{
                  item.goods_price | formatPrice
                }}</view>
                <!-- 商品数量 -->
                <uni-number-box
                  :min="1"
                  :value="item.goods_count"
                  @change="changeCount(item, $event)"
                ></uni-number-box>
              </view>
            </view>
          </view>
        </uni-swipe-action-item>
      </block>
    </uni-swipe-action>
    <!-- 结算组件 -->
    <my-checkout />
  </view>
  <!-- 购物车无商品时 -->
  <view class="empty-cart" v-else>
    <text class="tip-text">空空如也~</text>
  </view>
</template>

<script>
import { mapState, mapMutations } from "vuex";
import badge from "@/mixins/badge.js";
import MyAddress from "@/components/my-address.vue";
import MyCheckout from "@/components/my-checkout.vue";
export default {
  components: { MyAddress, MyCheckout },
  mixins: [badge],
  data() {
    return {
      defaultImage:
        "https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png",
      swipeOptions: [
        {
          text: "删除", // 显示的按钮文本
          style: {
            backgroundColor: "#C00000", // 按钮的背景颜色
          },
        },
      ],
    };
  },
  computed: {
    ...mapState("cart", ["carItems"]),
  },
  methods: {
    ...mapMutations("cart", ["updateState", "updateCount", "removeGoods"]),
    changeGoodsState(goods) {
      // console.log(goods);
      this.updateState(goods);
    },
    changeCount(goods, num) {
      // console.log(goods, num);
      this.updateCount({ goods, num });
    },
    swipeActionClickHandler(goods, e) {
      if (e.index === 0) {
        this.removeGoods(goods);
      }
    },
  },
};
</script>

<style lang="scss" scoped>
.cart-container {
  padding-bottom: 100rpx;
}
.cart-title {
  height: 80rpx;
  display: flex;
  align-items: center;
  font-size: 28rpx;
  padding-left: 10rpx;
  border-bottom: 1rpx solid #efefef;
  .cart-title-text {
    margin-left: 20rpx;
  }
}

.goods-item {
  display: flex;
  padding: 20rpx 10rpx;
  border-bottom: 1rpx solid #f0f0f0;
  width: 750rpx;
  box-sizing: border-box;

  .goods-item-left {
    margin-right: 10rpx;
    display: flex;
    justify-content: space-between;
    align-items: center;

    .goods-pic {
      width: 200rpx;
      height: 200rpx;
      display: block;
    }
  }

  .goods-item-right {
    display: flex;
    flex: 1;
    flex-direction: column;
    justify-content: space-between;

    .goods-name {
      font-size: 26rpx;
    }

    .goods-info-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .goods-price {
      font-size: 32rpx;
      color: #c00000;
    }
  }
}

.empty-cart {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 300rpx;

  .tip-text {
    font-size: 24rpx;
    color: gray;
    margin-top: 30rpx;
  }
}
</style>
